Electric switch box



June. 9, 192'5 1,541,485

E. DENNIS ELECTRIC SWITCH Box- Filed March a'. 1922 93.3 fwn/gina Patented June 9, 1925.

unit En Vsasl-Ar Eis ERLVY DENN-IS. UEv DETROIT,` MICHIG'N i Y smeren-:re` SWITCH B0X.

" Application nieeivfarch.s,.19zai semaine. 541,936;

Tof ZZ 107mm it.' 'inail/i Concern.'

Be: it; known'tliatt, EAnnDENNrs, citizen of the United States, residing ati Eetroit, eonnty effi/Vayne, State of Michigan, have invented certaininewrv ande' usetnlf. improvement in IfilectniieY S'n'fitehi Bones, andI declare the; iiellonvingr to be a., fit-l1; clear, and.' exact des'eriptioir o their sama.. siichf asl- W-ill enable others. skills d inf art .t @which it pertains to mailze@ and? use.'v the" same", reference: being had te theav accompanying drawings, which formi afapailt. oiifthisl sp eeifioatiom My iinW-xntion:v relates4 te improvements in Elie objiecti iszto provide switchL bon of cheap and simple construct-ion. adapted. to be; usedf' a. single' box,- ora a plurality. of which' boxes: may' be easiliyf ganfge'df together and` used as ai unitaryT structure. cenneeti'oni,-I haveA provided. a. simple, ett-eo'- tiveclamping` devineY adapted to retain-.the separate partsY ol thdboin together''as'` a unitary single; box and aisoradaptedito seL cure together adjfaeent box: seetironstm torni a multiple box. y

rPhe above, andi. other objects; together With: details off. construetio'ngl are .mene` nlly describ-ed.I in" the" tollbvvingl specifcation, aplli'endedclaims and! accompanying drawings, iirwhiioh;

Fig. 1 is a perspective of my improved sivitnhA bo-XY showing` some1-ai sections ganged together.

Fig. 2 is a fragmentary cross-section takenv Fig. 3 is a fragmentary perspective taken on substantially line 3 3 of Fig. 1.

Fig. 4 is a perspective of one of the clamping members.

Fig. 5 is an elevation of a single box.

My switch box comprises in combination a body section indicated in its entirety as 10, which is formed from a single sheet of metal and consists of a back portion 11,

' provided with the usual punch-outs 12, and

side portions 13, which side portions may also be provided With punch-outs, if desired, and detachable end sections 14. These side portions 13 are provided on one edge with' In this box; isnl prmfidedv With-turnedeover lugs 1G adapted to-Av be reoeiveet Within: the indentations15'gformedi1rthe side portions of. the ben, and-. thatither other; end section'V of each bondsprovided with: cults-outs 1-7 adapted to reeeive the: lugs'` 1317k formed; on4 thel side#l portions otith'efbox opposite the.l depressions-.15; 'Vhen'; several: ofi thoser` body'. seetions.V 1?() are ganged together, asshown inrFig; 1;, the vlugs 134 ot one; body sectionwinterioek in2 correvspoii'diiirgrindentations(15 termed? in theradf: jra'een't'fbody:sections:A

I- provide clamping@ memberv 1'8, onel for eaoh sident aY bodyv seet'ion, which, clamping memben is adaptedzte befr secured- 1 to said Vside by mea-ns ot; a sereni;L 19.-. This clamping member fis'y shaped at `its intermediate section adj-acentthe sei-ew-`A 1'9, as showvnatI QO-to embrace the paralleli forks 21 of a; securing ear225. by i-ieans-.ofi Wihieliiear the box. is` se. cured; tofthe Wall: or: ceiling, Wherever itv is desired for usex..` The-adjustment otthi's se. curing ear'isprovzded` for by. looseningythe screw.; 19y Whie-hiv secures the-clampiingrmem ber 181th the sideeorf the boar.' iVhzenith-eear is adjusted: asf desi1recl,,t`hey screw is tighten.-

ed andgt'heearr is held inw` sach: adjnstedposi tion.

This clampingl memberf extends-l tra-nsversely acrossthefside of.' thebo-X beyond-'the eel-ges4 thereofl and.Y thev end port-ionsare of'r set. asf shown to permit successive.y Clamping members carried by adiacenti bo'dyA sections toffe-verl ap -Without superimposing. each othen.

These clamps. extend beyond. the edges of the side of body sections and are turned over at the ends as shown atZB, a suicient distance beyond the edge of such side ot the body section as to engage over an end sec-` tion 14, as shown in F ig.V 3. The distance, therefore, beyond the edge of the side of the box at Which the end of theV clamping member is turned over is a distance slightly greater than the thickness of the metal nforming an end section.

/Vhen the box is used as a single unit, as shown in Fig. 5, the turned over ends of the clamp engage over the detachable end sections 14 to hold them in their interlocked engagement with the sides. When several bo'dy sections are ganged together, as shown in Fig. 1, one end of the clamping member carried by any side of a body section engages in an indentation 24 in the side of an adjacent body section. These indentatons 2a are staggered on each side of a body section a distance equal substantially to the width of the clamping member, to permit overlapping of successive clamps so as to interlock the several body sectionsrof the box together.

I/Vhat I claim is:

l. In a switch box, a body section having a back and two sides, two end sections, a clamping member for each side of the body section adapted to extend transversely thereover and project beyond the edges at each end, each clamping member having its end portions offset substantially the width thereof to lie alongside the clamping member of an adjacent body section, the end portions of said clamping members provided with ears to engage an adjacent body section or an end section.

Q. In a switch box, -in combination, a substantially U-shape body portion having two sides and a back, two independent end sections, a clamp for each side of the body portion adapted to extend transversely thereover and having end portions turned over to engage the end sections and offset from one another substantially the width thereof and connected by a bridge, means for securing said clamp to the side of the body portion, and a fastening ear held adjustably in position between the bridge of the clamp to the side of the body portion.

3. In a switch box comprising in combination, a body section consisting of two sides and a back and two end sections, a clamping member foreach side of the body section having opposed offset end extensions which project beyond the edges of the side of the body Section and are turnedinwardly at the ends, said clamp provided with a bridge intermediate the offset end extensions, securing means extending through said bridge to fasten the clamp at the side of the body, a slotted ear adjustably receivable underneath said bridge to be held in position between the bridge and the side wall of the body.

4C. In a switch box, in combination, a body section having a back and two sides, each side provided with two offset exterior indentations, separate end sections, a clamping member for each side adapted to extend transversely thereover and project beyond the side wallat each end, the ends of said clamping member offset and turned over to engage in the indentations of separate adjacent body sections to form a multiple section switch box.

5. In a switch box, in combination, a body section having a back and two sides, each side having staggered indentations, two end sections, separate body sections adapted to be disposed in abutting alinement to form a multiple unit box, a clamping member for each side of the body section, means detachably securing the same thereto, said clamping member having offset end portions which project beyond each edge of the side and are turned over at the ends to engage in the staggeredA indentations on the sides of adjacent body sections.

G. In a switch box, the combination of a body section having a back and two sides and two detachable end sections, separate body sections adapted to be disposed in alinement to form a multiple unit box, a clamp detachably secured to each side of each body section and having offset end portions extending beyond the side l and overlapping the side of the adjacent body sections and extending along the end extension of the clamp carried by such side, the end extensions of said clamps turned inwardly into depressions in the sides of the body sections to fasten separate body sections together.

In testimony whereof, I sign this specification.

EARL DENNIS. 

